My baby’s birth weight was 1.5 kg ( 32 weeks born) Now he is 2.5 months old and weighs 4 kg. How much should the weight be at 3 months

A. Dear parent, your baby has gained 2.5 kg in 2 and half months, which is a healthy weight gain. Baby should gain at least 500 grams per month. Your baby should gain another 250 grams at least in 15 days.